A microwave oven connected across a potential difference of 122 V has a resistance of 49 Ω . What is the current in the microwave oven? Answer in units of A.
Potential difference, "V=122\\space V"
Resistance of oven, "R=49\\space\\Omega"
Let current through oven be "I"
According to ohm's law,
"V=IR"
"I=\\dfrac{V}{R}=\\dfrac{122}{49}"
"I=2.49\\space A"
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